Common and Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2020

Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]

Summary Of Components Used To Calculate Basic And Diluted Income Per Share


(In thousands, except per share data)	2020		2019		2018
Basic income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	354,057	$	421,231	$	433,542
Less preferred stock dividends	11,966		9,000		9,000
Net income available to common shareholders	342,091		412,231		424,542
Less income allocated to nonvested restricted stock	3,215		4,019		4,558
Net income allocated to common stock	$	338,876	$	408,212	$	419,984


Weighted average common shares outstanding	116,360		119,473		122,170


Basic income per common share	$	2.91	$	3.42	$	3.44
Diluted income per common share:
Net income available to common shareholders	$	342,091	$	412,231	$	424,542
Less income allocated to nonvested restricted stock	3,211		4,012		4,547
Net income allocated to common stock	$	338,880	$	408,219	$	419,995
Weighted average common shares outstanding	116,360		119,473		122,170
Net effect of the assumed exercise of stock-based awards -- based on the treasury stock method using the average market price for the respective periods	224		297		379
Weighted average diluted common shares outstanding	116,584		119,770		122,549


Diluted income per common share	$	2.91	$	3.41	$	3.43

Schedule Of Activity In The Outstanding Shares Of The Company's Common Stock

The table below shows activity in the outstanding shares of the Company’s common stock during the past three years. Shares in the table below are presented on an historical basis and have not been restated for the annual 5% stock dividends.


	Years Ended December 31
(In thousands)	2020	2019	2018
Shares outstanding at January 1	112,132	111,129	106,615
Issuance of stock:
Awards and sales under employee and director plans	335	329	416
5% stock dividend	5,574	5,359	5,305


Other purchases of treasury stock	(887)	(4,670)	(1,194)
Other	(16)	(15)	(13)
Shares outstanding at December 31	117,138	112,132	111,129